Brother International DCP-7040 Users Manual - English - Page 78
Cleaning the corona wire
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d Put the drum unit and toner cartridge assembly back in the machine. e Close the front cover. f Plug the machine's power cord back into the AC power outlet. Turn on the machine's power switch. Cleaning the corona wire B If you have print quality problems, clean the corona wire as follows: a Turn off the machine's power switch. Disconnect all cables, and then unplug the power cord from the AC power outlet. b Open the front cover. c Slowly take out the drum unit and toner cartridge assembly. CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a piece of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. 66